(19)

(11)

EP 2 218 221 A1

(12)

(43) Date of publication: 18.08.2010 Bulletin 2010/33 (21) Application number: 08847007.5 (22) Date of filing: 05.11.2008

(51) International Patent Classification (IPC):  H04L 12/56(2006.01) (86) International application number: PCT/US2008/082460 (87) International publication number: WO 2009/061803 (14.05.2009 Gazette 2009/20)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR Designated Extension States: AL BA MK RS (30) Priority: 05.11.2007 US 985626 P 03.11.2008 US 264059 (71) Applicant: QUALCOMM Incorporated San Diego, California 92121 (US)	(72) Inventor: HO, Sai Yiu Duncan San Diego California 92121 (US) (74) Representative: Loveless, Ian Mark  Reddie & Grose 16 Theobalds Road London WC1X 8PL London WC1X 8PL (GB)